Trypanosyllis luquei, Álvarez-Campos & Giribet & San Martín & Rouse & Riesgo, 2017

TRYPANOSYLLIS LUQUEI View in CoL

ALVAREZ- CAMPOS & VERDES SP. NOV.

FIGS 10F View Figure 10 , 16A – C View Figure 16

Type material examined

Holotype. California: specimen in 96% EtOH ( SIO A5005 About SIO ), San Diego, Anza Cove (32.795278,

117.212778), bryozoans, intertidal, October 2013, leg. A. Verdes.

Paratypes. California: one specimen mounted for SEM ( SIO A5004 About SIO ) and one specimen in 96% EtOH ( SIO A5006 About SIO ), collection data as for the holotype .

Diagnosis

Similar to Trypanosyllis krohnii except for pigmentation and length of appendages ( Figs 3C View Figure 3 , 10F View Figure 10 ). Two brown transverse stripes across anterior segments, situated next to anterior and posterior ends of segment. Appendages also with brown pigmentation only in limit of each article. Width 0.2 – 0.4 mm with slender and shorter anterior cirri (32 – 35 articles). Dorsal cirri alternating long (18 – 20 articles) and short (12 – 14 articles).

Description

Holotype incomplete, 12 mm long, 0.4 mm wide, 105 chaetigers. Body white with brown transverse stripes across anterior and midbody segments, situated in the anterior and posterior ends of the segment ( Fig. 10G View Figure 10 ). Appendages also with brown pigmentation just in the end of each article ( Fig. 10G View Figure 10 ). Oval prostomium with two pairs of red eyes in trapezoidal arrangement. Oval palps shorter than prostomium, completely separate. Nuchal organs not seen. Segment 1 slightly smaller than subsequent segments; antennae originating on anterior margin of prostomium, median antenna with about 14 articles; lateral antennae slightly shorter, with 11 articles. Dorsal enlarged anterior cirri much longer than antennae, with about 35 articles, longer than ventral cirri, with about 24 articles. Dorsal cirri alternating between long (20 articles) and short (14 articles). Dorsal cirri from the first to the fourth segment longer than those of remaining segments, with 28 articles. Ventral cirri digitiform, shorter than parapodia. Compound bidentate heterogomph falciger chaetae with spines on margin, with between ten and 12 on anterior parapodia ( Fig. 16A View Figure 16 ), seven or eight on midbody parapodia ( Fig. 16B View Figure 16 ), and five or six on posterior parapodia ( Fig. 16C View Figure 16 ). Blades decreasing in length throughout the body, ventral blades always shorter than dorsal blades ( Fig. 16A – C View Figure 16 ). Two or three aciculae in all parapodia, thick, straight, acutely pointed. Dorsal and ventral simple chaetae not seen. Pharynx through about 12 segments, proventricle also through 12 segments, with about 30 muscle cell rows.

Remarks

Same as those in Trypanosyllis californiensis sp. nov.

Type locality

San Diego Bay , California (Pacific Ocean) .

Distribution

Only known from the type locality.

Etymology

Named after Dr. Angel A. Luque, colleague, friend, and mentor in our malacological endeavours.

TRYPANOSYLLIS KALKIN ALVAREZ- CAMPOS &